Granted Patent
Utility
US 5,032,300 · App. 07/420,205
Lubricant composition
Inventor:
Robert M. O'Neil
Patented Case
View Patent ↗
Granted: Jul 16, 1991
Filed: Oct 12, 1989
Inventor
Robert M. O'Neil
Assignee (at issue)
Ciba-Geigy
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.